Anti-collision and anti-corrosion device for bridge pier column and construction method of anti-collision and anti-corrosion device

Abstract

The invention relates to the technical field of bridge protection, and discloses an anti-collision and anti-corrosion device for a bridge pier stud, the anti-collision and anti-corrosion device for the bridge pier stud comprises a pile casing arranged outside the pier stud, the pile casing is formed by rolling a steel plate, the outer surface of the pile casing is subjected to thermal spraying zinc treatment, and the pile casing is lined with buffer rubber; a self-compacting fine stone C40 concrete layer is poured between the buffer rubber and the pier column. The scheme of the steel casing, the rubber plate and the filling concrete can play a role in preventing collision and abrasion of the pier. Impact energy of debris flow can be damped and absorbed through the rubber plate. On the other hand, the invention provides a construction method of the anti-collision and anti-corrosion device for the bridge pier column.

Description

technical field [0001] The invention relates to the field of bridge protection, in particular to an anti-collision and anti-corrosion device for bridge piers and a construction method thereof. Background technique [0002] The stability of rock formations and slopes in the southwestern mountainous area is getting worse and worse, and high-level collapse and rockfall and landslides are becoming more and more serious. While bridge piers in this area are at risk of being hit by collapse and rockfall, a large number of rocks with different particle sizes are accumulated in the mountainous valleys and rivers. Under the action, the rocks roll along the river with different kinetic energies, causing the bridge piers in the river to be impacted and eroded by the rolling stones for a long time. The concrete surface of the bridge piers is easy to crack, and the concrete of the bridge pier body falls off and the steel bars are exposed, which threatens the safety of the bridge. Safe to ...

AI Technical Summary

Problems solved by technology

[0003] The earliest protection method is steel casing protection, but the steel casing protection technology has poor wear resistance, corrosion resistance and durability. When impacted by rolling stones, the impact force is transmitted to the pier through the steel plate, which will damage the concrete of the pier. Steel casing After more than ten years of application, the device has problems such as non-wear resistance, non-collision resistance, easy corrosion and difficult maintenance, and cannot meet the actual protection requirements of the pier. Therefore, a protective device with a certain buffering effect is needed for protection.

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